JP2583805B2 - Yarn feeding device in a band-shaped seedling production machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention relates to a thread supply in a band-shaped seedling manufacturing machine in the case of transplanting divided transplants of needle-like or rod-like seedlings such as rushes. Related to the device.

<Prior Art> Conventionally, as a device for making a rush or the like into a band-shaped seedling, a device for planting a cup for each planting plant as shown in JP-A-148113 or a device as shown in JP-A-1-196206 is disclosed. There is known an apparatus in which a seedling is divided for each planted plant, and the divided seedlings are connected at regular intervals by a tape to form a connected seedling, and transplanted while cutting the tape.

<Problems to be Solved by the Invention> However, in the above-described apparatus, stocking is required for each planted seedling, or a great deal of labor is required for cup planting and tape bonding, which is inefficient and reduces the cost of seedling production. It was also uneconomical.

On the other hand, the present inventors have cut a fixed-diameter grown seedling, cut it flat and pressed it flat, and connected it in a band to form a band-shaped seedling. Invented was a method of transplanting while sequentially cutting and dividing into fixed amounts by feeding.

The band-shaped seedlings are connected and fixed to each other with a thread in order to connect them in a band shape and fix the connected state to an integrated band-shaped seedling.

However, the structure and function of the thread supply device that inserts the thread for connection and fixation through the connection seedling is one important point, or as a mechanism for supplying these threads, a thread reel for stocking the thread and a mechanism for connecting and fixing the thread. A mechanism for performing the thread brake related to the fixed strength without hindering the thread insertion operation has become indispensable, but there has been no device that has conventionally responded to these problems.

<Means for Solving the Problems> The apparatus of the present invention for solving the above-mentioned problems firstly includes a moving line 25 for moving the connected seedlings 1a arranged in a belt shape.
A rotating ring 32 that rotates around the moving line 25;
A thread supply device for projecting inward into the rotating ring 32 and supplying the thread 31 to the connected seedling 1a;
With the rotation of the rotating ring 32, the yarn is fed out from the tip side,
A beak 44 having a curved or bent front end portion is provided prior to the base end side so that the front end is inserted while weeding at a position close to the fixed portion of the connecting seedling 1a.

Similarly, in the second invention, a moving line 25 for moving the connected seedlings 1a arranged in a belt shape, a rotating ring 32 rotating around the moving line 25, and a protruding inward inside the rotating ring 32 are provided. A thread supply device for supplying a thread 31 to the connecting seedling 1a;
A yarn brake 53 for feeding out the yarn 31 and a yarn reel 52 for stocking the yarn 31 are provided close to the inner periphery of the rotating ring 32 so as not to contact the end of 1a.

<Action> Connected seedlings 1a arranged in a belt moving on the moving line 52
On the other hand, the rotating ring 32 rotates while passing the connecting seedling 1a therein, and the beak 44 of the thread supply device protruding from the inner periphery of the rotating ring 32 fixes the connecting seedling with the rotation of the rotating ring 32. The yarn is sequentially fed to and supplied to the portion. At this time beak 44
The curved end of the seedling is stabbed into the articulated seedling itself in the vicinity of the articulated seedling fixing part, and the thread is fed out from the tip thereof, and the yarn 31 is smoothly and continuously attached to the articulated fixing part without being entangled with the seedling itself. Supply.

In the above-described thread supply and fixing work, the thread brake 53 and the thread reel 52 are located at positions near the inner circumference of the rotating ring 32, and are not only located at the weeding position of the articulated seedling 1a itself but also at all at the articulated seedling 1a itself. Since it is provided at a position where it does not contact, not only does it not interfere with weeding and fixing work and cause disturbance of seedlings, it also relates to the width of the yarn reel 52 related to the amount of yarn stock and the performance holding mechanism of the yarn brake 53 Thread reel 52 and thread brake
It can be designed and assembled without being limited by 53 widths.

<Embodiment> Hereinafter, an embodiment of the apparatus will be described in detail with respect to a rush seedling production apparatus.
By growing the root of the root and the stem of the plant that has grown to a diameter of about 0 mm, for example, to a length of about 200 mm, and passing the seedling through a pressure biasing device (not shown) including a pair of loosening rollers and pressure biasing rollers. For example, a sheet formed into a sheet-shaped pressure-biased seedling having a thickness of about 20 mm is used.

FIG. 1 shows a method of forming a sheet-like seedling while connecting the sheet-like seedling with other seedlings and an outline of a band-like seedling producing machine for the purpose. The band-like seedling producing machine 11 has irregularities (not shown) on the surface. A short presser belt 18 in which the required long endless resin receiving belt 12 is wound around rollers 13 and 14 and the front and rear ends are wound around rollers 16 and 17 on its front end in parallel with the receiving belt 12 is provided. Supported.

Between the receiving belt 12 and the holding belt 18, the receiving belt 12
On the seedling placement section (seedling arrangement section) 18a on the rear upper surface of
The rear end of the sheet-like seedling is partially overlapped or brought into contact with the front end of another seedling to form a gap for pushing forward the connected strip-shaped connected seedlings 1a while pressing them sequentially.

Each of the rollers 13 and 16 is a driving roller, and the end of each of the roller shafts 19 and 21 has a belt 12,
Pressing rollers 22 and 23 having elastic rubber wound around the peripheral surface rotating at substantially the same peripheral speed as 18 are supported by the respective shafts. Further, in front of the rollers 13 and 22 and 16 and 23, a pressing contact is performed. Roller 2
Feed rollers 24, 26 for feeding the seedlings sent out from the feeders 2, 23 while holding them in the next step are supported by a fixed vertical gap. The feed rollers 24 and 26 have spur gear-shaped irregularities on the peripheral surface, and are both driven in a direction to feed the seedlings forward. The belts 12, 18 and the rollers 24, 26 form a moving line 25 for feeding seedlings.

A guide roller 27 and a tape roller 28a, 28b are vertically arranged above and below the pressing rollers 22, 23, respectively, and each tape roller 28a, 28b has a certain strength against water. Tapes 29a and 29b made of paper or cloth or other materials, which are broken by a long period of immersion in water and which break the bonds of fibers and the like, are stocked.

When the connecting seedling 1a sent by the belts 12, 18 passes between the pressing rollers 22, 23, the upper and lower tapes 29a, 29b are pressed against the pressing rollers 22, 23 and The adhesive surface side is fed out so as to be sequentially pressed or adhered to the front and back surfaces of the rhizome portion of the connecting seedling 1a. From the lower part of the tapes 29a, 29b, the roots of the rush seedlings protrude, and from the upper part, the sprouts germinating from the upper part and the sprout germinating near the base end thereof are in a state of protruding, and the tapes 29a, 29b are at the base end. The bonded seedlings 1a that are adhered are further pressed by the next feed rollers 24 and 26, and are sequentially sent out while strengthening the adhesion.

At the position where the pressing of the tapes 29a and 29b is performed as described above and the next feed rollers 24 and 26 are reached, the connecting seedling 1a is securely held by the rollers and the belt, and the tapes 29a, An operation of integrally fixing the seedlings 29b and the seedlings therebetween by the thread 31 is performed.

That is, the rollers 24, 26 in the moving line 25 of the connecting seedling 1a
Around the front-rear gap (delivery gap 30) between the tapes 22 and 23, a pipe-made rotating ring 32 having a center at the seedling portion between the tapes 29a and 29b is rotated at right angles to the moving line 25. It is freely supported.

On the outer periphery of the rotating ring 32, three rolling wheels 33a to 33c circumscribing the lower left and right sides and the upper center are pivotally disposed, and the lower rolling wheels 33b and 33c rotate as driving wheels, The rotating ring 32 is driven to rotate clockwise in rear view.

That is, the rolling wheel 33b on the moving line 25 side is inputted to the belt 37 from the input pulley 36 fitted to the input shaft 34 and rotates, and the input shaft 34 and the rolling wheel 38 of the other rolling wheel 33c are respectively rotated. A chain 41 is wound around the fitted sprockets 39b, 39c, and the rolling wheels 33b, 33c are both in contact with and driven by the rotating ring 32. In addition, the upper wheel 33a is pivotally supported at the tip of a swing arm 42 whose base end is pivotally supported on the body frame side,
The swing arm 42 always acts to press the rotating ring 32 against the rolling wheels 33b, 33c by a spring 43 stretched between the swing arm 42 and the body side.

On the inner periphery of the rotating ring 32, a beak 44, which is bent and formed in a beak shape so that the tip forms a mountain shape in the rotating direction as shown in the drawing, protrudes toward the inside of the ring. The beak 44 is a weeding rod 46 made of a rod material whose base end is straight and whose front end is curved toward a position close to the outside of the tapes 29a and 29b (toward the seedling stalk) in the delivery gap 30; A yarn guide made of a pipe that is inside the curved portion of the weeding rod 46, the base end of which extends parallel to the weeding rod 46 at a fixed interval, and the distal end of which is curved along the tip of the weeding rod 46. And a guide tube 47. The tip of the weeding rod 46 and the guide tube 47 is welded and fixed at a curved portion at the tip.

Although the proximal end of the weeding rod 46 is a round bar, as it approaches the distal end, it is sharpened so that the outside of the curve sequentially forms an edge as shown in FIGS. Further, the beak-shaped tip portion is formed in a needle shape, and has a structure capable of smoothly penetrating the connecting seedling 1a on the moving line 25 and allowing weeding. The distal end of the guide tube 47 ends just before the leading end of the weeding rod 46 and is welded and closed at that position. A spool-like thread pay-out guide having a round groove 49a at the center is provided at the base end of the outlet hole 48, so that the thread is smoothly fed out from the tip of the guide tube 47.

The base end of the beak 44 is fixed to a bracket 51 fixed to the inner periphery of the rotating ring 32, and the bracket 51 has a tip protruding along the inner periphery of the rotating ring 32 on the side opposite to the rotation direction of the ring, A yarn reel 52 is rotatably supported at the end thereof, and the yarn 31 wound around the yarn reel 52 is provided.
Passes through the bracket 51 and the guide tube 47, and
With the rotation of 32, it is fed out toward the tapes 29a and 29b between the rollers 23 and 26.

In the bracket 51, a reel-shaped thread brake 53 for holding the thread 31 fed out from the thread reel 52 to the beak tip side and providing a feeding resistance (friction resistance) is supported by a shaft. The spring 56 fitted to the brake shaft 54 elastically applies a clamping force to the yarn.
The holding force can be adjusted by adjusting the elasticity of the spring.

The thread reel 52 and the thread brake 53 are mounted close to the inner periphery of the rotating ring 32 together with the bracket 51, and the tip of the seedling protruding from the inner peripheral surface does not hit the tip of the continuous seedling 1a. It is located outside the indicated relative trajectory line P (see FIG. 3). In addition, since the yarn reel 52 does not pass through the delivery gap 30, the width of the reel can be widened and the amount of yarn stock can be increased without restriction on the reel width.

The feeding end of the thread 31 is fixed to the tapes 29a, 29b and the seedling portion located in the delivery gap 30 in advance before the rotation ring 32 is started, and the rotation ring 32 is rotated while sequentially feeding the connected seedlings 1a forward. Then, the thread 31 is unreeled toward the center of the ring, wound sequentially in a spiral manner on the tapes 29a, 29b on the front and back of the connecting seedling 1a, and integrally and connecting the tapes 29a, 29b and the rush seedling therebetween. United, banded seedling 1b
And send it forward.

At this time, in the illustrated example, the beak 44 rotates downward from above the stem of the continuous seedling 1a, pushes through the rush stem portion from above and passes, and the thread 31 is obstructed by the stem portion of the rush seedling. Instead, it is wound only around the tapes 29a and 29b at the root of the seedling, and its strength is adjusted by adjusting the resistance of the yarn 31 to be fed from the yarn reel 52.

In the above mechanism, the seedling is moved forward and the rotating ring
Since the thread is fed using the rotation of the thread 32, the drive of the thread reel 52 is unnecessary, and sufficient winding can be performed only by giving the thread 31 a feeding resistance with the thread brake 53. In addition, since each of the movements is driven at a constant speed, the winding of the yarn 31 is uniform.

57 is a cutter supported at the side of the presser belt 18 and rotating at a high speed in the seedling feeding direction. Seedling
This is the final height of 1b. Below the cutter 57, a two-blade saw-tooth receiving cutter 58 for accommodating the peripheral edge of the cutter 57 and feeding the seedlings slowly according to the peripheral speed of the belt while receiving the seedlings to be cut. Is provided.

Since the outer circumference of the cutter 57 and the receiving cutter 58 overlap each other, cutting is reliable, and the receiving cutter 58 forms a saw-tooth shape and evenly divides the seedlings and receives them, and rotates in synchronization with the belt feed. Because of the cutting, there is no uneven cutting and no turbulence in the stem.

In the transfer gap 30 between the tip of the receiving belt 12 and the roller 24 in the moving line 25, a table-like guide 61 made of a left-right plate is fixedly provided at a position where the passage of the beak 44 is not hindered. The bottom of both ends of the
A movable guide 62 that horizontally rotates so as to be able to come and go on the 24 side is supported by a shaft 63.

The movable guide 62 normally protrudes in the seedling feeding direction, and smoothly guides the movement of the connected seedling 1a on the moving line 25 together with the upper surface of the guide 61. 7 and 8
When the beak 44 passes through as shown in FIGS. (A) to (D), it is pushed back and stored in the lower part of the guide 62, and when the beak 44 passes, it is again projected by the spring 65 provided on the shaft 63. It has a structure to return. 64 is a stopper for stopping the movable guide 62 at the return position.
It protrudes from the bottom side of 61.

As shown in FIG. 6, an accommodating groove 66 having a predetermined width for accommodating the tip of the protruding movable guide 61 is formed on the peripheral surface of the roller 24 corresponding to the projecting position of the movable guide 61, as shown in FIG. The protruding movable guide 61 is inserted inside the outer periphery of the roller 24 to reduce the gap and step between the tip of the movable guide 61 and the peripheral surface of the roller 24, smoothly move the seedlings in the delivery gap 30, and disturb the seedlings. It is to prevent.

A star wheel 67 having teeth slightly projecting from the upper surface of the receiving belt 12 is fitted to the right projecting end of the roller shaft 19, and the seedling is temporarily blocked by the beak 44 in the delivery gap 30. However, it is a mechanism for forcibly and quantitatively feeding the seedlings so as not to disturb the feeding of the rear seedlings.

The band-shaped seedlings 1b continuously formed by the above-described apparatus are sequentially wound into a roll, and it is also possible to continuously supply them by attaching them to a planting machine as they are, It can be cut into band-shaped seedlings and used.

The band-shaped seedlings 1b are placed on a planting machine (not shown), cut into a short width (for example, about 15 mm) while being automatically fed, and are sequentially planted while being scraped off by a planting beak.

2 and 3 show the detailed structure of the device of the present invention.
A horizontal upper frame 72 is provided on the upper part of the body frame 71, and plate-like brackets 76 for supporting the roller shafts 19, 21, the feed rollers 24, 26, etc. are provided upright on both sides of the moving line 25. .

The rear half of the left bracket 76 of the moving line 25, that is, the seedling arranging section 18a is connected to the connecting seedling 1 placed on the receiving belt 12.
A root alignment plate 77 is formed for abutting and aligning the root sides of c. The tape roller 28a and the upper guide roller 27 are supported by the left bracket 76, and the lower tape roller 28b is supported by a bracket 78 projecting below the upper frame 72. Both cutters 37a and 37b have the right bracket 76
It is pivoted on.

Next, the drive system of the band-shaped seedling production machine 11 will be described. The output pulleys 83 and 84 of the motor 82 provided in the body frame 71 are divided into a high-speed drive system and a low-speed drive system. The output sprocket of the gear case 87 is connected to the input pulley 88 of the gear case 87 via 86.
Reference numeral 89 denotes a roller drive system of the moving line 25 and a receiving cutter 58.
To rotate them slowly.

The high-speed output pulley 83 of the motor 82 rotates the input pulley 36 of the shaft 34 with the belt 37 also as the input shaft of the gear case 91, and rotates the driving wheels 33b and 33c and the cutter 57 at high speed.

<Effect of the Invention> According to the present invention configured as described above, the seedling connecting and fixing thread is extremely smoothly supplied to the connected seedlings moving on the moving line, and is reliably supplied according to the flow of the seedlings. There is an advantage that the articulated seedlings are articulated and fixed in a belt shape, and these operations are automatically and efficiently performed.

In particular, in the first invention, since the root of the curved beak passes through the seedling ahead of the other while passing through the seedling sequentially while sowning the seedling, the entanglement between the stems does not occur and the supply of the yarn is performed. Is not disturbed. Moreover, since the beak is curved or bent, when passing through the seedling, the intersection moves smoothly from the base end to the tip of the seedling toward the outer periphery of the rotating ring, so that the seedling flows on the line. Is smooth without being stopped.

Further, in the second invention, since the thread brake or the thread reel does not separate or pass the seedling when the rotating ring is rotated, the seedling is not disturbed or the thread is not entangled. Since the restriction on the width of the reel is relaxed, there is an advantage that a high-performance yarn brake or a yarn reel having a large stock amount can be attached.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention in the drawings. FIG. 1 is an overall perspective view showing a main part of a band-shaped seedling producing machine, FIG. 2 is a side sectional view thereof, and FIG. Rear view of the seedling moving direction, FIG. 4 is an enlarged side view showing the base end of the thread supply device, and FIGS. 5 (A) to 5 (C) are enlargements of parts indicated by A, B, C in FIG. FIG. 6 is a plan view of a seedling feeding guide portion on a moving line, FIG. 7 is a rear view showing a structure and an operation state of a thread supply device, and FIGS. 8 (A) to (D). FIG. 8 is a plan view showing the operation of the thread supply device and the operation of the seedling feed guide corresponding to (A) to (D) in FIG. 1a: articulated seedling, 1b: banded seedling 11: banded seedling production machine, 12: presser belt 13, 14: roller, 19, 21: roller shaft 22-24, 26: roller, 25: moving line 30: delivery gap, 31 : Thread 32: Rotating ring, 33a: Holding wheel 33b, 33c: Drive wheel, 39a, 39b: Sprocket 41: Chain, 43: Spring 44: Beak, 51: Bracket 52: Thread reel, 53: Thread brake 61: Guide, 62: movable guide 66: accommodation groove, 67: star wheel

Claims (2)

(57) [Claims] 1. A moving line (25) for moving a connecting seedling (1a) arranged in a strip, a rotating ring (32) rotating around the moving line (25), and a rotating ring (32) inside the rotating ring (32). And a yarn supply device for projecting inward to supply the yarn (31) to the connecting seedling (1a). The yarn supply device feeds the yarn from the front end side with the rotation of the rotating ring (32). , A beak (44) having a beak (44) with a curved or bent distal end so that the distal end is inserted while weeding in the vicinity of the fixed part of the connecting seedling (1a) before the proximal end Yarn supply device in seedling production machine. 2. A moving line (25) for moving the connected seedlings (1a) arranged in a strip, a rotating ring (32) rotating around the moving line (25), and a rotating ring (32) inside the rotating ring (32). And a thread supply device for projecting inward to supply a thread (31) to the connected seedling (1a). The thread supply device includes an end portion of the connected seedling (1a) when the rotating ring (32) rotates. A belt-shaped seedling provided with a thread brake (53) for feeding out the thread (31) and a thread reel (52) for stocking the thread (31) in close proximity to the inner periphery of the rotating ring (32) so as not to contact the thread. Yarn supply device in manufacturing machine.